Can appendicitis be chronic?

No: Appendicitis is not chronic. It is possible to have chronic irritation to the appendix, but it is not a chronic infection. If infected, the appendix is removed. However, even after an appendectomy, it is possible to get appendicitis again. Usually a little stump of the appendix is left and this can, rarely, get infected again.

Yes: It can especially if you are middle aged or older. What has happened is you have had small repeated infections, and now have a chronic condition. It isn't the most common presentation, but can happen.

Exceptionally rare.: 99.9% of the time, inflammation of the appendix will lead to rupture within 2-4 days if left untreated. "chronic" appendicitis represents the very rare patient whose appendicitis resolves without treatment, only to recur at a later time. Nevertheless, if i were to evaluate someone with chronic abdominal pain, this would be very low on my "differential diagnosis".